"Used NGK to replace Bosch +2 Platnum (2,000 miles old) due to skipping caused by plug misfire. No more misfire! Left Bosch plugs in NGK box at local Stewarts perhaps somebody else will have better luck with 'em."posted by: JRD on May 14, 2010view all 3 reviews

"NGK Irridium spark plugs.. I never though they would be this great but night and day difference in the way my car drives(engine). Its so much smoother quieter responsive rev happy and most of all what really blew me away was the improved acceleration. People told me it would improve but i did not think it would be by this much. I can surely tell there is more pull in my car since i drive it daily. It is great! Worth the price buy them up!!"posted by: Vroom08 on January 1, 2013view all 2 reviews

"From now on I will no longer order from your website. I can understand some price differences between a seller to a different seller but a 40% difference!? It is too much to swallow. Keep in mind that your price was 40% higher even after reflecting the 20% discount code."posted by: Used Buyer From Virginia on July 24, 2014view all 1 reviews

"This spark plug is the only plug my 2007 Charger 3.5 will accept. Tried other plugs, car misfired each time. Plugs that have to be "gap checked" do not fare well in the SXT model. These are less expnsive, but so what.. I change them every 25,000 miles anyway. It is a matter of preference, and I love preventative maintenance. Again.. you will do alright by these plugs."posted by: Commander on December 25, 2009view all 1 reviews